amlogic,gx-sound-card.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/sound/amlogic,gx-sound-card.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Amlogic GX sound card
    8 
    9 maintainers:
   10   - Jerome Brunet <jbrunet@baylibre.com>
   11 
   12 properties:
   13   compatible:
   14     items:
   15       - const: amlogic,gx-sound-card
   16 
   17   audio-aux-devs:
   18     $ref: /schemas/types.yaml#/definitions/phandle-array
   19     description: list of auxiliary devices
   20 
   21   audio-routing:
   22     $ref: /schemas/types.yaml#/definitions/non-unique-string-array
   23     minItems: 2
   24     description: |-
   25       A list of the connections between audio components. Each entry is a
   26       pair of strings, the first being the connection's sink, the second
   27       being the connection's source.
   28 
   29   audio-widgets:
   30     $ref: /schemas/types.yaml#/definitions/non-unique-string-array
   31     minItems: 2
   32     description: |-
   33       A list off component DAPM widget. Each entry is a pair of strings,
   34       the first being the widget type, the second being the widget name
   35 
   36   model:
   37     $ref: /schemas/types.yaml#/definitions/string
   38     description: User specified audio sound card name
   39 
   40 patternProperties:
   41   "^dai-link-[0-9]+$":
   42     type: object
   43     description: |-
   44       dai-link child nodes:
   45         Container for dai-link level properties and the CODEC sub-nodes.
   46         There should be at least one (and probably more) subnode of this type
   47 
   48     properties:
   49       dai-format:
   50         $ref: /schemas/types.yaml#/definitions/string
   51         enum: [ i2s, left-j, dsp_a ]
   52 
   53       mclk-fs:
   54         $ref: /schemas/types.yaml#/definitions/uint32
   55         description: |-
   56           Multiplication factor between the frame rate and master clock
   57           rate
   58 
   59       sound-dai:
   60         maxItems: 1
   61         description: phandle of the CPU DAI
   62 
   63     patternProperties:
   64       "^codec-[0-9]+$":
   65         type: object
   66         description: |-
   67           Codecs:
   68           dai-link representing backend links should have at least one subnode.
   69           One subnode for each codec of the dai-link. dai-link representing
   70           frontend links have no codec, therefore have no subnodes
   71 
   72         properties:
   73           sound-dai:
   74             maxItems: 1
   75             description: phandle of the codec DAI
   76 
   77         required:
   78           - sound-dai
   79 
   80     required:
   81       - sound-dai
   82 
   83 required:
   84   - model
   85   - dai-link-0
   86 
   87 additionalProperties: false
   88 
   89 examples:
   90   - |
   91     sound {
   92         compatible = "amlogic,gx-sound-card";
   93         model = "GXL-ACME-S905X-FOO";
   94         audio-aux-devs = <&amp>;
   95         audio-routing = "I2S ENCODER I2S IN", "I2S FIFO Playback";
   96 
   97         dai-link-0 {
   98                sound-dai = <&i2s_fifo>;
   99         };
  100 
  101         dai-link-1 {
  102                 sound-dai = <&i2s_encoder>;
  103                 dai-format = "i2s";
  104                 mclk-fs = <256>;
  105 
  106                 codec-0 {
  107                         sound-dai = <&codec0>;
  108                 };
  109 
  110                 codec-1 {
  111                         sound-dai = <&codec1>;
  112                 };
  113         };
  114     };

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